<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
		#dv {
			width: 200px;
			height: 200px;
			border: 1px solid #000;
			background-color: #lightblue;
		}
	</style>
</head>
<body>
	<div id="dv"></div>
</body>
</html>